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Analyst Tracker/Detlef Winckelmann
JPM

Detlef Winckelmann

J.P. Morgan
Wall Street Analyst
★★★★☆
#580
on 13Foresight · ranked by our own returns
70%
Success Rate
+4.2%
Average Return
16 of 23 calls profitable · +29.4% vs benchmark
S&P 500 (SPY)
📈 Across the calls we could measure, roughly 70% of Detlef Winckelmann's ratings turned a profit when each position was held for 1 year — averaging +4.2% per rating. These figures are computed by 13Foresight from historical prices, not supplied by the analyst.

Rating Distribution

21 Buy 25 Hold 5 Sell
Detlef's Stock Coverage 10 ratings · 2026-08-16
Company Date Position Consensus ⓘ Price Target ⓘ 1-Yr Return vs S&P 500 ⓘ
GPK
Graphic Packaging
 Aug 06, 2026 HOLD Hold
+48.5% avg upside
21 analysts
$12.50
9.56% Upside
 +0.3% ·
SW
Smurfit Westrock
 Aug 04, 2026 BUY Strong Buy
+12.8% avg upside
17 analysts
$68.00
38.05% Upside
 +1.5% ·
GB:MNDI
Mondi plc
 Jul 30, 2026 HOLD Buy
+1782.1% avg upside
10 analysts
$800.00
9.27% Downside
 -1.3% ·
IP
International Paper Co
 Jul 28, 2026 BUY Strong Buy
+26.3% avg upside
20 analysts
$61.00
49.80% Upside
 -6.7% ·
PKG
Packaging
 Jul 28, 2026 BUY Strong Buy
-8.4% avg upside
16 analysts
$312.00
22.22% Upside
 +0.9% ·
GB:0CXC
Stora Enso Oyj
 Jul 24, 2026 HOLD Hold
+12.8% avg upside
11 analysts
$11.00
14.63% Upside
 · ·
GB:0NV5
UPM Kymmene
 Feb 05, 2026 SELL Buy
+18.6% avg upside
10 analysts
$21.40
6.87% Downside
 · ·
SE:HOLM.B
Holmen AB
 Jan 29, 2026 SELL Strong Sell
+5.9% avg upside
6 analysts
$306.00
4.22% Downside
 +0.7% ·
SE:SCA.B
Svenska Cellulosa SCA AB
 Dec 05, 2025 HOLD Hold
+16.8% avg upside
10 analysts
$133.00
22.57% Upside
 -8.2% ·
SE:STE.R
Stora Enso Oyj
 Nov 29, 2024 HOLD Hold
+22.2% avg upside
1 analyst
$128.94
22.16% Upside
 +4.3% ·
🔒 5 more ratings — with price targets, crowd consensus and our measured returns.
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Detlef Winckelmann — Frequently Asked Questions
How accurate are Detlef Winckelmann's stock ratings?
Based on the calls 13Foresight could measure, about 70% of Detlef's ratings were profitable over a one-year hold, with an average return of +4.2% per rating, or +0.3% versus the S&P 500. We score every analyst the same way, from historical prices. Each return is measured in the stock's own trading currency, so for non-US listings the S&P 500 comparison leaves out currency moves.
How is Detlef ranked on 13Foresight?
Detlef Winckelmann is currently ranked #580 with a 4-star rating. Our rank blends hit rate, average return versus the market, and how many calls we have to judge — so a long, consistent record outweighs a few lucky picks. It is our own calculation, updated daily.
Which stocks does Detlef cover?
Detlef most recently has ratings on GPK, SW, GB:MNDI, IP, PKG, GB:0CXC, GB:0NV5, SE:HOLM.B, SE:SCA.B, SE:STE.R. See the full coverage table above for positions, price targets and our measured returns.
Where can I see other analyst ratings?
Browse the full analyst leaderboard to compare Wall Street analysts ranked by their measured performance, success rate and average return.

Disclaimer: 13Foresight compiles analyst ratings and price targets from publicly available sources. Performance metrics, rankings and star ratings shown here are calculated independently by 13Foresight from historical market prices and may differ from figures published elsewhere. This information may be incomplete, delayed or inaccurate, is provided for research and informational purposes only, and is not investment advice. The underlying ratings and opinions are those of the respective analysts and their firms; 13Foresight accepts no liability for any decisions made based on this data.